OECD prices: Prices and Purchasing Power Parities
Eurostat prices: https://ec.europa.eu/eurostat/databrowser/view/prc_hicp_aind/default/table?lang=en
Canada: https://www150.statcan.gc.ca/t1/tbl1/en/cv.action?pid=1810000501 (a lot of price data, but detailed consumption is only for a recent period, starting from 2010). 
Australia: https://www.abs.gov.au/statistics/economy/price-indexes-and-inflation/consumer-price-index-australia/sep-2020#data-download 